One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,6,7)(3,11,12,8)(4,13,14,9)(5,10,15,16)(17,18)(19,26)(20,28)(21,23)(22,25)(24,29)(27,31)(30,32)(33,34)(35,36)(37,41)(38,39)(40,42)(43,44)(45,46)(47,48)(2,7)(3,12)(9,13)(10,16)(17,19,22,21)(18,23,25,26)(20,27,29,30)(24,31,28,32)(33,34)(35,42)(36,40)(37,41)(38,39)(43,46)(44,45)(47,48)(2,7)(3,12)(9,13)(10,16)(20,29)(24,28)(27,30)(31,32)(34,39)(35,40)(41,48)(43,45) involution — undirected(1,3,6,12)(2,8,7,11)(4,10,14,16)(5,9,15,13)(17,20,22,29)(18,24,25,28)(19,27,21,30)(23,31,26,32)(33,35,38,40)(34,36,39,42)(37,45,47,43)(41,46,48,44)(1,4,6,14)(2,9,7,13)(3,10,12,16)(5,8,15,11)(17,21,22,19)(18,23,25,26)(20,30,29,27)(24,31,28,32)(33,36)(34,40)(35,39)(37,46)(38,42)(41,43)(44,47)(45,48)(1,5,6,15)(2,10,7,16)(3,13,12,9)(4,11,14,8)(17,18)(19,23)(20,28)(21,26)(22,25)(24,29)(27,32)(30,31)(33,37,38,47)(34,41,39,48)(35,43,40,45)(36,44,42,46)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.